<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>达娃卓</title>
</head>
<body>
<table border="1">
    <tr>
        <td rowspan="2">tr1_td1</td>
        <td>tr1_td2</td>
        <td colspan="2">tr1_td3</td>
    </tr>
    <tr>
        <td>tr2_td2</td>
        <td>tr2_td3</td>
        <td>tr2_td4</td>
    </tr>
    <tr>
        <td>tr3_td1</td>
        <td>tr3_td2</td>
        <td colspan="2" rowspan="2">tr3_tr3</td>
    </tr>
    <tr>
        <td>tr4_td1</td>
        <td>tr4_td2</td>
    </tr>
</table>
</body>
</html>